Tape Recorders/Reproducers

playback. Each tape recorder can record from any

magnetic tape recorder/reproducers, a phonograph

program source or from recorder to recorder, and will

record changer, an amplifier control panel, and two

provide concurrent playback while recording.

audio-frequency power amplifiers. The system

distributes programs on four independent channels,

The availability of two tape recorders/repro-

which are selectable at all ship's entertainment

ducers provides the ship's entertainment system

loudspeakers. These programs are produced locally

operator with the capability for a variety of

from the system and externally from remote sources.

techniques. The operator can, for example, do the

following:

Local program sources for the four channels are

from the two tape recorders/reproducers and the

Duplicate( dub) from one tape to another

phongraph changer. Remote program sources include

two separate AM/FM radio transmitters and a remote

Switch from one tape to another to maintain

microphone, permanently wired into the system. A

continuous recording

microphone input jack, located on the front of the

control panel, is also used as an input to the channels.

Take material from one tape and put it on an-

This jack permits voice announcements to be made

other tape while mixing microphone commen-

over any one of the four channels individually or over

tary into the program

all four channels simultaneously. When this feature is

used, it overrides any other signal or signals being

Edit a tape onto another by duplicating (dub-

distributed to the system.

bing) selected portions only

Relays are installed in the system to provide for

Play a tape for ship's use while simultaneously

the muting of the system's loudspeakers when an

duplicating the tape for the ship's library

alarm is transmitted over the general announcing

system (circuit 1MC). These relays also provide for

NOTE: To use any of the exclusive rights of a

the attenuation of the system's loudspeakers during

voice transmission over circuit 1MC.

ment of the owner's copyright. These exclusive rights

include copying, reproducing, printing, publishing,

The AN/SIH-7 system operates on 115-volt,

exhibiting, translating, and vending the copyrighted

60-Hz, single-phase ac ship's service power.

work or portions thereof and, in some instances, the

oral delivery or performance of the work. In addition,

Tape Recorders/Reproducers

the duplication of American Forces Radio and

T e l e v i s i o n Services (AFRTS) or commercial

The two magnetic tape recorders/reproducers

reel-to-reel tapes is NOT authorized.

contained in the control cabinet are identical in every

respect. One tape recorder is designated TAPE 1 and

When a tape has been recorded, you can turn it

is located at the top of the cabinet. The other tape

over and record again in the other direction to double

recorder is designated TAPE 2 and is located directly

the amount of playing time. However, you should

below TAPE 1. TAPE 1 is a program source for

remember that when a tape has been recorded in both

channels 1 and 3. TAPE 2 is a program source for

directions you cannot edit it by cutting and splicing

channels 2 and 4.

one channel without disrupting material recorded in

the other direction.

Each tape recorder is capable of playing and

recording at two different speeds (7.5 and 3.75 inches

Amplifier Control Panel

per second [ips]), using either 7-inch or 10.5-inch

standard tape reels, Each recorder can record

The amplifier control panel (fig. 8-2) is located

quarter-track monaural in each tape direction and play

below TAPE 2. The panel contains the system power

back quarter-track and half-track monaural or

section, a mike control section, two record control

commercial 4-track stereo tape recordings. Stereo

sections, four channel control sections, a program

playback is converted to monaural within the system.

monitor control section, and an output level monitor

E a c h recorder contains all the mechanical

section.

components necessary for transporting tape and all

SYSTEM POWER SECTION.-- The system

the electronic components necessary for

power section is located on the lower right side of the

amplification equalization during recording and

8-2